Railway-car truck.



PATE-NTED MAR. 6, 190e.

2 8HEETS-BHEBT 1.

5 g 6 FM w a e e will and: Il l v5 Wwf .v o. f

Anon/yer G. c. STEWART.

RAILWAY UAR TRUCK.

APPLICATION FILED OCT. 27,1905.

PATENTED MAR. 6, 1906.

2 SHEETS-SHEET 2.

BY f

l?AT.ENCi; Oiririoia. i'

"GEORGE CLAUDE STEWART; ,or .MARENGQ nii'DIANA.

No. 814,4oa. Y"

v joined claims.

.objectionable jerking ,movement Be it lrnown that I, GEORGE CLAUnE Sri-:w- An'r, a citizen o r' the United States, and'a residentof Marenlgo in -the countyof Crawfordactuated cars havingtheir bodies carried on upright springs thefnertiaofthe car-body and its load tends'toresistfa sudden-onward impulse, which causes the' carfbody to lurch rearward and 'when'.th'ecar suddenly stopped the body'will 'lu'rchfforward {1T-his u i of -tliecarbody is largely 'dii'e to the` lateral.v 'ieldin of the springfsupportsf thehcar-.bo y'in'a oi"- ward'or rearward direction. i-

The object of my inventior'i' is to provide novel details of'construction4 forl a car-truck that will counteract'the lateral yielding movement of the earbody on its spring-supports, either forward; rearward, or sidewise, and by cushioning such a lurchingiovrrient obviate in a largedegree 'the"objecti,onable erking motion incidental toithe4 operation o cars having runninggear of ordinary construe# Llull.; v Q

The invention-consists in the novel construction and combination of arts, as ishereinaiter fully described, and de ed in the sub Reference is to be had tol the accompanying drawings, forming a part of this specifica-- tion, in which similar characters of reference indicate corresponding parts in all the figures.

Figure 1- is a partly-'sectional side View of a4 ear-truck embodying details of the invention.

3nd a portion o a car-body carried by the" huek. F ig. 2 is-a plan view ofthe improved ear-truck. Fig. 3 is a transverse sectional View of the'same, taken substantially'on tlie line 3 3 in Fig. 1. Fig. 4 is an enlarged |ongi-' tudinal sectional view of novel details, taken substantially on the line 4 4 in Fig.'1. Fig. 5 sa det-ached perspective view a 'l -specificatio of Letters Pauc. 1-4 f -lippiiomjm rita cam: 21. 1905.' serio-Na. 234.653.

n theoperationfof electrically- RAitwAY'J-CR TRUCK.

Patented Maich e, i906.

employed, and Fig. 6 is an enlarged transverse sectional view taken substan ti all y on the line66inFig.l.' Y

In the drawings, 6 represents the frame of the truck,consisting of an oblong ring, vquad- Aiangular in form and preferably rounded at the corners. The side members 6a oftlie' frame 6 are reinforced by substantially U- shaped depending'carrierrbars 7', thatare located 'centrally and have upturned legs. 7 1

.thereon furnished with longitudinal flanges 7b,`.whicl1'are'secured on the lower vsides of said side members, as shown, for one carrierbarin Fig. 1. The frame 6 is mounted upon wheels 8 on the ends of'axles 8",.the journals "of which have bearings in boxes S", secured upon the frame below the flanges 7*', thus disposing the wheels inside of the' frame, and ity will be noted that the' boxes 8 are devoid of spring-supports, being' rigid witlitlie frame.

A bearer-beam 9, mounted and secured at its end's on theU-sliaped carrier-bars 7, :if-

fords a seat for a plurality of coiled springs 10,'upon 'wli ich rests a bolster-beanil l. A

'guide-box 12,'that looselv receives the bol- Aster-beam 11, is secured by [langes o at its ends upon the side members of the frame 6 and serves to prevent the bolsterfbeam from rockin' sidewise or turning so as to swing it lateral y; on the springs 10. Said guide-box l is claimed as an advantageous feature of the invention. Between the legs 7"L and bearer- .beam 9 braces 7c 7" areintroduced and are secured at their upper ends upon the' lower sides of the frame members 6a and at their lower ends are affixed upon the carrier-bars 7, these braces stiffening the connectionsbe-- tween the frame 6 and the carrier-bars.

Coacting with the guidefbox 12 are the main details of the invention for preventingV an equalixingfl'iar 14, as shown-in Fig. 3, said bar having a pivotal connection l5 at its cen- 'ter between it and the center ol' the bolsterbeam l l, as also appears in Fig. 3. Upon the side members GAof the frame, opposite the ends of the' bolster-"beam ll, two bracketstands 16 of Vlike form are' mounted, cach consisting of a knee-block having two flange members b'b, the members b being:-seated upon and secured to the side .members 6 "longitudinal andlateral swaying movement .of the main frame 'and the 4flanges b projected upwardly therefrom, as is clearly shown in Fig. 3. A rock-arm is'provided for engagement with'geaclr end of the equal- 'izing-bar 14, and, vasshown i""`Fig. 5, each rock-arm is in the form of a' heavy metal bar, having a straight cylindrical body pjortion 17 and a flat member 17a thereon extended at an obtuse angle from one end .of the body portion 17, and, as ap ears in Figs. 1, 2,

- and 5, the cylindrical bo y 17exceeds in length the flattened portion 17 a. Near the center of the rock-arm member 17a of each arm a transverse perforation is formed therein for the reception of a trunnion c on a corresponding end of the equalizing-bar .14. Each rock-arm member 17a is also pivoted upon an adjacent upright flange b of a respective bracket-stand 16 near the junction of said member with a corresponding section 17, as shown at c. The cylindrical body portion 17 'of each rock-arm trends downward and away from a res ective bracket-stand 16, terminating at the ower end thereof in a flat flanged, preferably seated upon a flat gum-spring d', seated uponA the frame member .6, above which said rock-arm is disposed. A coiled spring 18 is seated upon each flange dand is maintained in an upright position byaspringcase 19, closed at the upper end and hanged at the lower end, said circumferential flanges on eachspring-case being secured uponthe main frame, as shown in Figs. 1 and 2. Each, spring-case 19 is open at the side toward the body of a respective rock-arm 17, andthe cy-'. lindrical portion thereof is adapted for vertical-play in the .opening of the case. The flat member 17a of each rock-arm projects across a respective end of the guide-box. 12, and upon said projected portion the upper end of a plunger-md 20 is jointed, as shown at e in Figs. 1 and 2. Each )lunger-rod 2() is in thel form of a cylindrical )ar that extends diagonally downward through an opening g in the side member 6B of the frame 6 and likewise through a perforated guide-block 21, secured in a slot in an appropriate leg 7a of an adjacent carrier-bar 7.' As shown in Fig. 6, each perforated guide-block 21. supports an antiriction-roller 21" on a pivot-rod 2,1b in such a relative position that the periphery of the roller has contact with the lunger-rod 2() and prevents said rod from bearing on the guide-block, thus reducing friction lbetween said working rod and its support. A springcase 22 is also extended through a respective leg 7, concentric with a corresponding plunger-rod 2l). and in said spring-case for each plu nger-rod two coiled springs 23 are laced on the plunger-rod, one sprin'g above t e guideblock 21 and the other below it. Two abritnicnt-pins l: are inserted through each plunger-rod 211 at the ends of the springs 23 farthest from the guide-block 2l, with which they have contact at cpposite 'sides thereof,

and--it will be seen that'a longitudinal sliding movement of the lun er-rods downwardly will be cushioned by t e upper springs 23, that are' thenfc'ompressed u on the u per sides ofthe respective guide-b ocks 21. urthermore, if an upward pull is given to the plunger-rods x20 in alike manner the lower.

springs 23 inthe cas's'22 willbe pressed against the lower sides of the guide-blocks 2 1 and the compression` of said springs will counteract the pull on said rods 1n a degreeproportioned to the dormant force of the springs. l As hereinbefore stated, the preferred use of the im' rovement is to obviate the longitudinal jerlling of a car-body propelled by an electric motor.'A In such a construction the motor, as usual, is mounted upon the frame 6 at a selected end and by provision of gearing of any preferred construction transmits power and progressive motion to the truck andl carbody thereon when the motor is energized by electricity, and as this means for propelling a car is not a feature of the invention it is omitted from the drawings.

lained that the brake device shown and that It may here-be ex-.

1s adapted forA forcing-the `'ordinarybralrev blocks 24 Vagainst the wheels 8 is'not claimed as a novel featureand any other brake appliance may bel employed, if preferred.'

Inoperation when'the car receives a propelling impulse,v which; in many cases is sudden, due 'j to `acareless. handling of the controller for, the lelectricl motor, the inertia.l of

that the jolt given tothe body'will act downwardly and rearwardly on the equalizing-bar and parts directly connected with it, as just described. The'v plunger-rods 2() will Abe IOC pressedendwise by the described swa in acf tion of the car-body, but will trave on y a slight distance, owin to their support by the u per springs 23, an the rocking movement of) the arms 17 and 17 will be counteracted by the s rin s 18, that resist an upward movement o the oWer endscl of the rock-arms, the downward thrust of the arms 17 being ab.- sorbed by thecushion-s rings d. Obviously the resistance to the jer 'ng movement of the car-body will beim erceptible, owing to the springs 18 and 23a sorbing the jolt, so that the car will start without jar should the motor be energized suddenly. As the exigencias of the service .on electric-motorropelled cars frequently. necessitate the a most' instant stoppage of the car, such abrupt arrests of forward movement causes the carbody to recoil, due to its momentum, and a heavy jolt forwardly results. When such an action is sustained by a car having the improvement, the jerklng'of the car-body is IXO neutralized by transmission of the abrupt jolt to the springs 23 und the downthrust of the rods 17 to the cushion-springs d. It is well known that on an undulating trsekway a light cnr rocks endwise, and when e eer is running on e sherp Curve the ear-body has u tendeney to sway outwardly, or toward the high side of the'traek. By the employment of the improvement the longitudinal rocking movement of the ear will be arrested without jar, and the side sway ol' the oer-body willbe cheeked, this being due to the fact that the swaying movement that rocks the oar-body sidewise tends to depressthe spring-supported bolster-benin 11 et its outer end, which will be direetly opposed by the springs i8 und 23, their expensive force being adapted to support the bolster-beam land prevent u. luteral rocking movement of the esr-lnidy.

Having thus described my invention, claim as new und to secure by Letters Petent- 1. The combination with the cnr-body, of u ear-truck frame, a spring-supported bolsterbeem Carried transversely of the frame, n guide-box laterally inelosing the bolster, an equelizing-bnr pivoted, centrally on the beam und secured to the eur-body, und oppositelyarranged flexible eonneetions betiveen the equelizing-bar und the enr-truck freine et euch end of said bar.

2. 'lhe combination with a ear-body, of s eer-truck frame having parallel side members, a bearer-benin hung from the side members, springs mounted on the bearer-bar, e bolsterbeam seated upon the spring, e guide-box laterally ineasing the bolster-benin, the ends ol the guide-box being?r secured on the side members oiihe frame, an equnliZing-bur pivoted centrallyon the beumand secured to the ear-body, and opp()sitely-urrange(l flexible connections between the. eqiuilizing-lun and the enr-body iframe ut eueh end of said bnr.

3. ln a enr-truck, the combination with u 'treme having parallel side members, two eer.- rier-bars hnvingr upturned legs secured on seid side members, n bearer-benin secured at its ends on level portions of the terrier-bers, und springs on the bearer-beam, of u bolsterbeznn mounted upon the springs, :in equalizingbnr centrally pivoted on the bolsterbenxn, und spring rushioning means eorried on the l'rnnle und loosely engaging the ends ol` the edunlzing-bnr'.

4. ln :i eur-truck, the eombinution with u ironie, und n. spring-supported bolster-beam mounted trnnsversely thereon, of u. eushionin;r deviee on enel] side oi' the ironie, comprising n rl'iek-:lrin pivoted on u projeetion troni the lrulne7 n spring' on the l'rnnle pressing on one end ol' the.roek-nrnnn trnnnioned bur on the bolster-beam Whereon the rook-erm loosely mounted, e plunger-rod pivoteo. et one end on the other end of the rock-erm, e guide-bleek carried on the freine, througi which the lunger-rodworlis, e roller on the guide-bloei? on which the rod beers, end e spring mounted upon the plunger-rod and bearing at one end on the guide-bleek and pressing at the opposite end on e projection from lthe plunger-rod.

5. In a. cer-truck, the combination Vith e frame lie-ving parallel side members, an essentially U-sheped carrier-ber depending from each of seid frame members, und n springpressed bolster-benin supported on the earrier-bars, ol' e cushioning device on each side member of the freine, euch comprising bent roekrm, an equnlizing-ber pivoted eentrally on 'the bolster-benxn-und having n truny nion et each end, whereon the rook-arms are respectively mounted to roek, seid arms bel ing respectively pivoted" neer their bends upon e projection from 'the frame, e pressurespring beurin upon e flattened end on each rock-erm, e plunger-rod pivoted et its upperend on the remaining end of n corresponding' roeknrm, a guide-block carried on s leg ol' euch Carrier-ber end through which s respettive plunger rod works, and cushioningsprings mounted upon the plunger-rods, heving` oneend ot eneh spring sented on thel edjueent guide-block, und the other end thereof bearing on u projection *from the plungerrod.

6. The-combination with u eur-body, e, eertruek frame, e. spring-supported bolster-beam carried transversely on the frame, and en eqimlizing-ber Centrally pivoted on tht benin nd secured on the eer-body, seid ber having trunmons on its ends, of n cushioning device mounted on the treme steaeh side thereof,

und comprisingy a bent roeli-sri'n pivoted neer.

the bend on u breel-:et-stend erected from the l'ru-nie, end also loosely'mounted neer seid pivot on e respective trunnion end of `the equelizing-ber, n springx on the freine pressim@r one end of u respective rooie-erm, a plunger-rod pivoted upon the remaining end of euch rock-erin, u guide-bleek esi-ri ,d on the frame und through 'whieh the plunger-rod worlis,e,nd :i spring mounted upon eeeh plun- `ger-rod, pressing at one end ou u guide-bloeit und et the opposite end on :i projection i'rem the plunger-rod.

ln testimony whereof l lieve signer?Vv my, nome to this speei'lieution in thil presenee oi` tvvo subscribing witnesses.

GlCllGll CLAUDE S'Vlll/Vfill'l. llitni'sses:

llxinnv C. MURPHY, lltisim li. downs. 

